534 Storer on the 
“Tail with a carina undulated above, and slightly 
emarginated at the base ; pectorals long, narrow, and 
falciform ; dorsals and anals projecting backwards in 
a point ; second dorsal opposite to the anal, the latter 
bilobed. A white spot on each side of the neck. 
Head flat and broad ; snout sharp edged, rounded 
and wide at the end; eyes lateral, large, orbicular, 
pupil transverse ; narrow, with a nictitant membrane 
originating below ; branchial apertures five, une- 
qual, the first very large, the last very small, and 
situate above the origin of the pectoral fins; nos- 
trils oblique and partially covered by a short, pointed 
appendage on the margin, near the end of the snout ; 
tail rounded, strong, with a falciform fin, terminat- 
ing in a distinct, triangular, lanceolate lobe ; lower 
lobe of the fin short and rounded ; ventrals small 
subquadrangular, without posterior process; teeth 
triangular, serrate.” 
Lawwa. Cuv. 
Generic characters. Point of the nose conical, nos- 
trils pierced on its under surface ; all the five bran- 
chial apertures in advance of the origin of the pec- 
torals ; the first dorsal fin placed much nearer the 
line of the pectoral than the anal fin ; lobes of the 
tail nearly equal. _ 
L. punctata. Mitchell The mackerel Shark. 
Plate III. Fig. 2. a 
Trans. Lit. et Philosoph. Soc. N. Y. vol. i. p. 483. 
